Investigation Of Plate Welding Quality By Robot Welding Using Nondestructive Technique

Haryatie , Samsuri (2009) Investigation Of Plate Welding Quality By Robot Welding Using Nondestructive Technique. Project Report. UTeM, Melaka,Malaysia. (Submitted)

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Abstract

Joining between two metal plates by using the welding process is not produced a high quality of final product but it has some discontinuities and defects that appear inside the welds. These defects are actually caused from some factor either environment factor or setting by operator before operator conducted the welding operation. For your information, the defects still has either using manual welding or using robot welding. But the percentage of defects that’s found on welds after using robots welding are less comparing with manual welding. So, the performance and its result done by robots welding and manual welding can learn together. The welding quality, defects, skill of the welder and position done by welder also can relate with this parameter of the causes of welding defects. This is because the parameters effecting in welding quality is the main factor of discontinuities caused by inadequate or careless application of proper welding technologies or by poor welder training. From this major discontinuities that affect weld quality are solved with a best method for controlling those parameters factors. The internal defects or an external defect that can detect by human eyes was tested by nondestructive testing method. But this projects, the testing methods used is ultrasonic testing which is the classical test method based on measurements by using ultrasonic oscillations for detection of flaws in different material. The ultrasonic testing by give reproducible test results within narrow tolerances. Not all influences have to be regarded by the operator. In many cases of the influences can be neglected without exceeding the permitted measurement tolerances.

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